Combustion chamber structure of a surface high-temperature sterilization device

Abstract

This utility model belongs to the field of agricultural equipment technology, and particularly relates to a combustion chamber structure for a high-temperature surface disinfection device. It includes a frame with several rows of burners, one end of which has casters, and the other end is detachably connected to a traction device. The combustion chamber structure also includes a combustion chamber installed outside the frame. The bottom and both ends along the forward direction of the frame of the combustion chamber are open, and the side walls of the combustion chamber extend downwards to a height lower than the horizontal level of the burners. An air inlet duct is located at one end of the top of the combustion chamber facing the forward direction of the frame, and an exhaust duct is located at the other end. Both the air inlet and exhaust ducts are connected to the internal space of the combustion chamber. This utility model provides a stable combustion heating environment for the fuel-fired burners, ensuring efficient heating of the soil by the thermal field and improving the soil heat treatment effect.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural equipment technology, and in particular relates to the combustion chamber structure of a surface high-temperature disinfection device. Background Technology

[0002] High-temperature soil sterilization technology differs from traditional pesticide disinfection methods. It utilizes a high-temperature environment to treat the soil, killing pests, insect eggs, viruses, and other microorganisms, as well as removing residual pesticides and other chemical agents. While there are many existing high-temperature soil sterilization devices, most rely on direct flame heating during transport. This often results in less than ideal effects, primarily because the heat source (flame) is directly exposed to the external environment, leading to unstable and fragmented heat that fails to provide a continuous and stable thermal treatment environment with minimal heat gradient changes. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a combustion chamber structure for a surface high-temperature disinfection device. This utility model provides a stable combustion heating environment for fuel injectors, ensures efficient heating of the soil by the thermal field, and improves the heat treatment effect of the soil.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A combustion chamber structure for a surface high-temperature disinfection device includes a frame with several rows of burners. One end of the frame is equipped with a moving wheel, and the other end is detachably connected to a traction device. The combustion chamber structure also includes a combustion chamber installed outside the frame. The bottom of the combustion chamber and both ends along the forward direction of the frame are open, and the two side walls of the combustion chamber extend downward to a height lower than that of the burners. The combustion chamber has an air inlet duct at one end facing the direction of the frame's movement and an exhaust duct at the other end. Both the air inlet and exhaust ducts are connected to the internal space of the combustion chamber.

[0005] Preferably, the air inlet port of the air inlet duct, which connects to the outside, is equipped with a fan that blows air into the air inlet duct.

[0006] Preferably, the end of the air inlet duct away from the fan is inclined downward and bends downward, extending towards the interior space of the combustion chamber.

[0007] Preferably, the exhaust duct includes several interconnected smoke inlets, which are arranged above the rows of burners.

[0008] Preferably, the exhaust duct is inclined towards the ground at the end furthest from the air inlet duct.

[0009] Preferably, the fuel pipe of the burner passes through the combustion chamber and is connected to an external fuel source.

[0010] Preferably, the combustion chamber is made of flame-retardant material, and the outer wall of the combustion chamber is provided with heat insulation material.

[0011] The working process of this utility model is as follows: As the traction equipment moves the frame, the burner nozzles emit high-temperature flames that come into contact with the soil. To ensure complete combustion of the fuel, a blower draws outside air into the combustion chamber through the air intake duct, providing sufficient oxygen for fuel combustion. At the same time, it agitates the high-temperature airflow within the combustion chamber, causing the airflow to come into contact with the soil again for heat transfer.

[0012] The flue gas from fuel combustion eventually enters the exhaust duct through the flue gas inlet and is ultimately discharged towards the ground. This serves two purposes: firstly, to prevent hot air from being discharged horizontally or upwards and causing injury; and secondly, to allow the high-temperature flue gas to undergo further high-temperature disinfection upon contact with the soil.

[0013] Compared with the prior art, the present invention has the following advantages: The present invention provides a stable combustion heating environment for fuel flamethrowers, ensures efficient heating of the soil by the thermal field, and improves the heat treatment effect of the soil. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the combustion chamber structure of the surface high-temperature disinfection device described in a specific embodiment; Figure 2 This is a schematic diagram of the internal structure of the combustion chamber as described in a specific embodiment. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0016] like Figure 1-2 As shown, a combustion chamber structure of a surface high-temperature disinfection device includes a frame 1 with a moving wheel 11 at one end and a soil-shoveling plate 12 at the other end in the length direction. The combustion chamber structure includes a combustion chamber 2 installed outside the frame 1. The bottom of the combustion chamber 2 and both ends along the forward direction of the frame are open. The two side walls of the combustion chamber 2 extend downward to a height lower than the horizontal height of the burner 14. The combustion chamber 2 is made of flame-retardant material, and the outer wall of the combustion chamber 2 is provided with heat insulation material. The frame 1 has drawbars 13 on both sides in the width direction. The drawbars 13 pass through the combustion chamber 2 and are detachably connected to the tractor, so that the end of the frame with the shovel plate 12 is set towards the working direction. The combustion chamber 2 has an air inlet duct 21 at one end facing the direction of the frame's movement and an air outlet duct 22 at the other end. Both the air inlet duct 21 and the air outlet duct 22 are connected to the internal space of the combustion chamber 2.

[0017] Several rows of burners 14 are evenly spaced along the length of the frame 1. Each burner 14 is a diesel flame burner, and its oil inlet pipe is equipped with a pump group and passes through the combustion chamber 2 to connect with the tractor's fuel tank. A high-temperature resistant conveyor belt 15 for transporting soil is also rotatably mounted on the frame 1 below the burner 14. The drive shaft 16 of the conveyor belt 15 is connected to the output end 19 of the reducer 17 via a sprocket drive structure 18. The input shaft 110 of the reducer 17 is connected to the PTO shaft of the tractor via a coupling. The shovel plate 12 is inclined and its bottom end is used to cut into the ground surface for shoveling operations, while its top end extends to the top belt body of the connecting conveyor belt 15. Accordingly, the combustion chamber 2 should be positioned to avoid structures such as the reducer 17 on the frame 1, so as to cover the heating range of the burner 14.

[0018] The air inlet duct 21, which connects to the outside, is equipped with a blower 23 that blows air into the air inlet duct. The end of the air inlet duct 21 away from the blower 23 is inclined downward and bends downward, pointing towards the internal space of the combustion chamber 2. The exhaust duct 22 includes several interconnected smoke inlets 24, which are positioned above the rows of burners 14. The end of the exhaust duct 22 away from the air inlet duct 21 is inclined and points towards the ground. The working process of this utility model is as follows: The tractor is connected to the frame 1 via the drawbar 13, and the tractor's PTO shaft and the input shaft 110 of the reducer 17 are connected via a coupling, thus completing the connection between the frame 1 and the tractor.

[0019] Then the tractor is driven and the frame 1 is moved in the field. At the same time, the PTO shaft outputs power through the output shaft 110 of the reducer 17. During the rotation of the output shaft 19, the drive shaft 16 of the conveyor belt 15 and the rotation of the conveyor belt 15 are realized through the sprocket transmission structure 18.

[0020] As frame 1 is moved by the tractor: Because the bottom edge of the shovel plate 12 cuts into the ground surface (the cutting depth can be adjusted according to requirements, i.e., adjusting the specific position or size of the shovel plate on the frame), the surface soil moves continuously upward along the shovel plate 12 under the pushing action of the subsequent soil. The soil eventually enters the conveyor belt 15 in the combustion chamber 2, and at the same time, the burner 14 sprays high-temperature flames to contact the soil during the movement and perform high-temperature sterilization. When the soil moves to the top of the conveyor belt 15 at the end of the belt drive direction, the soil automatically falls to the ground, thus indirectly completing the soil loosening process.

[0021] To ensure the complete combustion of the fuel injected by the burner 14, the blower 23 draws outside air into the combustion chamber 2 through the air inlet duct 21, providing sufficient oxygen for fuel combustion. At the same time, it disturbs the high-temperature airflow in the combustion chamber 2, causing the high-temperature airflow 2 to move along the conveyor belt 15 and re-contact the soil for secondary heating and conduction.

[0022] Moreover, the flue gas finally enters the exhaust duct 22 through the flue gas inlet 24 and is discharged to the ground. On the one hand, it prevents the hot air from being discharged horizontally or upward and causing injury. On the other hand, the high-temperature flue gas comes into contact with the soil falling from the conveyor belt 15 and the ground soil for three high-temperature disinfection. At the same time, the airflow can also form an air curtain to control the dust effect during the soil falling process.

[0023] The high-temperature resistant conveyor belt described in this embodiment can be a metal track structure or a metal-supported mesh belt structure.

Claims

1. A combustion chamber structure for a surface high-temperature sterilization device, comprising a frame with several rows of burners, one end of the frame having casters, and the other end being detachably connected to a traction device, characterized in that, The combustion chamber structure also includes a combustion chamber installed outside the frame. The bottom of the combustion chamber and both ends along the forward direction of the frame are open, and the two side walls of the combustion chamber extend downward to a height lower than that of the burner. The combustion chamber has an air inlet duct at one end facing the direction of the frame's movement and an exhaust duct at the other end. Both the air inlet and exhaust ducts are connected to the internal space of the combustion chamber.

2. The combustion chamber structure of the surface high-temperature sterilization device as described in claim 1, characterized in that, The air inlet port of the air inlet duct, which connects to the outside, is equipped with a fan that blows air into the air inlet duct.

3. The combustion chamber structure of the surface high-temperature sterilization device as described in claim 2, characterized in that, The air intake duct is inclined downwards and bends at the end away from the fan, extending towards the internal space of the combustion chamber.

4. The combustion chamber structure of the surface high-temperature sterilization device as described in claim 1, characterized in that, The exhaust duct includes several interconnected smoke inlets, which are positioned above the rows of burners.

5. The combustion chamber structure of the surface high-temperature sterilization device as described in claim 4, characterized in that, The exhaust duct is inclined towards the ground at the end furthest from the air inlet duct.

6. The combustion chamber structure of the surface high-temperature sterilization device as described in claim 1, characterized in that, The fuel pipe of the burner passes through the combustion chamber and is connected to an external fuel source.

7. The combustion chamber structure of the surface high-temperature sterilization device as described in claim 1, characterized in that, The combustion chamber is made of flame-retardant material, and the outer wall of the combustion chamber is provided with heat insulation material.

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